Grenade.



J. KOLPAK.

GRENADE.

APPLICATION man NOV. 6. 1912.

1 ,279,359. Patented Sept. 17,1918.

INVENTOR. gpfi/Ta] a2:

#41 ATTORNEY JOSEPH KOLPAK, 0F BUFFALO, NEW YORK.

GRENADE.

Specification of Letters Patent.

Patented Sept. 1'7, 1918.

Application filed November 6, 1917. Serial No. 200,592.

To all whom it may concern:

Be it known that I, JosErH KoLPAx, a subject of the Czar of Russia, resident of Buffalo, county of Erie, and State of New York, have invented certain new and useful Improvements in Grenades, of which the following is a specification.

This invention relates to improvements in projectiles, particularly to types known as grenades. The principal object of the invention is to provide a projectile inclosing a grenade and adapted to be detonated when striking a solid object after being discharged from the projectile at the end of its trajectory.

This and other like objects are attained by the novel. construction and combination of parts hereinafter described and shown in the accompanying drawings, forming a material part of this specification, and in which Figure 1 is a partial side elevational and sectional view of a projectile made in a cordance with the invention.

Fig. 2 is a vertical sectional view taken through the center of the grenade casing and Fig. 3 is a longitudinal sectional view taken through the center of the grenade elements.

Referring to the drawings,the numeral 10, indicates a projectile provided with bands 11, and a hardened point 12 as is usual, the interior being filled with an explosive substance 14, as powder, except at the center which contains a cylindrical casing 15, around which the powder is tightly packed, the cylinder having a loosely engaged head 16, at one end and being open at the opposite end 17 as indicated.

Inclosed in the walls of the casing 15 is a bushing 18, having an axial opening 19, the bushing being preferably made of relatively soft elastic substance, as is the Plate washer 20, at the opposite end of the easing adjacent to the cover 16. Also inclosed in the bore 22, are a pair of spherical grenades 23 and 24, connected by a hollow tubular stem 25 and filled with a high explosive 28 as can be seen in Fig. 3.

The outermost grenade 23 sets in a spherical recess formed in'the pliable washer 20, while oppositely disposed in the extreme end of the grenade 24: is a nipple 30, carrying a percussive cap 31, and a washer 32, through the central opening of which passes a stem 33, encircled by a spring 34, the stem terminating below the washer 32, in a point 35, adapted to detonate the cap 31. The opposite outer end of the stem has secured to it an operative head 36, which upon being struck forces the point into contact with the cap causing the same to explode and detonate the explosive material 28, therein which is transmitted through the tubular connection 25 to the other grenade 23 causing the same to be discharged.

In operation, the projectile 10, when fired in the usual manner, upon its explosion, liberates the cylinder 15, so that the grenades 23 and 24, are free to drop by gravity and uponstriking any hard surface, cause the same to be exploded in an obvious manner.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a grenade, the combination with a pair of spherical hollow casings, a tubular connection extending therobetween a nipple formed with one of said casings, a detonating means engaged in said nipple and means permitting said detonating means to Operate upon coming in contact with a hard surface.

2. In a projectile, the continuation with a casing, and a powder charge contained therein, of a cylinder located axially in said projectile. series of spherical grenades carried in said cylinder, pliable contact elements engaging with said spherical grenades, a hollow connection extending between said grenades, and means attached to one of said grenades whereby it is caused to explode upon making contact with a hard object.

In testimony whereof I have aiiixed my signature.

m JOSEPH KOLPAK.

mark

Witnesses:

FRANK KoLov'rzme, MIKE DUROWSKI.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of patents.

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